For Nginx appeared commercial technical support

Three service packages are available:

• Essential ($ 1100 / mo)
• Advanced ($ 4400 / month, $ 50K / year)
• Premium ($ 6,600 + / mo, $ 70K + / year)

The most expensive option includes an unlimited number of servers, 24x7 round-the-clock telephone support and allows for employment. On the cheapest rate, a maximum of 2 incidents per month, 2-10 servers, mail / web contacts, no priority development for the client or design / implementation assistance are considered.

Contracts are concluded for 3-12 months, payments monthly or quarterly, prepayment.

Of course, no one forces you to subscribe to commercial support, you can use free support , the product and all source codes also remain free.